fix custom severities order

platform/analysis-impl/src/com/intellij/codeInsight/daemon/impl/SeverityRegistrar.java

@@ -151,7 +151,7 @@ public class SeverityRegistrar implements Comparator<HighlightSeverity> {
     }
     else {
       //enforce include all known
-      List<HighlightSeverity> list = getAllSeverities();
+      List<HighlightSeverity> list = getSortedSeverities(orderMap);
       for (HighlightSeverity stdSeverity : knownSeverities) {
         if (!list.contains(stdSeverity)) {
           for (int oIdx = 0; oIdx < list.size(); oIdx++) {
@@ -200,9 +200,14 @@ public class SeverityRegistrar implements Comparator<HighlightSeverity> {
 
   @NotNull
   public List<HighlightSeverity> getAllSeverities() {
-    return Arrays.stream(getOrderMap().keys())
+    return getSortedSeverities(getOrderMap());
+  }
+
+  @NotNull
+  private List<HighlightSeverity> getSortedSeverities(OrderMap map) {
+    return Arrays.stream(map.keys())
                  .map(o -> (HighlightSeverity)o)
-                 .sorted(this)
+                 .sorted((o1, o2) -> compare(o1, o2, map))
                  .collect(Collectors.toList());
   }
 
@@ -264,7 +269,12 @@ public class SeverityRegistrar implements Comparator<HighlightSeverity> {
 
   @Override
   public int compare(@NotNull HighlightSeverity s1, @NotNull HighlightSeverity s2) {
-    OrderMap orderMap = getOrderMap();
+    return compare(s1, s2, getOrderMap());
+  }
+
+  private int compare(@NotNull HighlightSeverity s1,
+                      @NotNull HighlightSeverity s2,
+                      @NotNull OrderMap orderMap) {
     int o1 = orderMap.getOrder(s1);
     int o2 = orderMap.getOrder(s2);
     return o1 - o2;